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Finding the Fourth Proportional to 8,806,985.60, 13,210,478.40 and 8,806,985.60

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Solution

The fourth proportional to 8,806,985.60, 13,210,478.40 and 8,806,985.60 is: 13,210,478.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,806,985.60 : 13,210,478.40 = 8,806,985.60 : x
  2. Step 2: Convert to fraction form
    8,806,985.60/13,210,478.40 = 8,806,985.60/x
  3. Step 3: Cross multiply
    8,806,985.60x = 13,210,478.40 × 8,806,985.60
  4. Step 4: Simplify right side
    8,806,985.60x = 116,344,493,037,911.03
  5. Step 5: Solve for x
    x = 116,344,493,037,911.03/8,806,985.60
  6. Step 6: Final answer
    x = 13,210,478.40

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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.