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Finding the Fourth Proportional to 12,528,999.90, 17,502,808.50 and 12,528,999.90

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Solution

The fourth proportional to 12,528,999.90, 17,502,808.50 and 12,528,999.90 is: 17,502,808.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528,999.90 : 17,502,808.50 = 12,528,999.90 : x
  2. Step 2: Convert to fraction form
    12,528,999.90/17,502,808.50 = 12,528,999.90/x
  3. Step 3: Cross multiply
    12,528,999.90x = 17,502,808.50 × 12,528,999.90
  4. Step 4: Simplify right side
    12,528,999.90x = 219,292,685,946,219.16
  5. Step 5: Solve for x
    x = 219,292,685,946,219.16/12,528,999.90
  6. Step 6: Final answer
    x = 17,502,808.50

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.