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Finding the Fourth Proportional to 8,788,553.60, 13,182,830.40 and 7,371,377.60

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Solution

The fourth proportional to 8,788,553.60, 13,182,830.40 and 7,371,377.60 is: 11,057,066.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,788,553.60 : 13,182,830.40 = 7,371,377.60 : x
  2. Step 2: Convert to fraction form
    8,788,553.60/13,182,830.40 = 7,371,377.60/x
  3. Step 3: Cross multiply
    8,788,553.60x = 13,182,830.40 × 7,371,377.60
  4. Step 4: Simplify right side
    8,788,553.60x = 97,175,620,715,159.03
  5. Step 5: Solve for x
    x = 97,175,620,715,159.03/8,788,553.60
  6. Step 6: Final answer
    x = 11,057,066.40

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.