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Finding the Fourth Proportional to 8,708,802.30, 13,047,457.05 and 7,449,090.30

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Solution

The fourth proportional to 8,708,802.30, 13,047,457.05 and 7,449,090.30 is: 11,160,166.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,708,802.30 : 13,047,457.05 = 7,449,090.30 : x
  2. Step 2: Convert to fraction form
    8,708,802.30/13,047,457.05 = 7,449,090.30/x
  3. Step 3: Cross multiply
    8,708,802.30x = 13,047,457.05 × 7,449,090.30
  4. Step 4: Simplify right side
    8,708,802.30x = 97,191,685,750,821.62
  5. Step 5: Solve for x
    x = 97,191,685,750,821.62/8,708,802.30
  6. Step 6: Final answer
    x = 11,160,166.74

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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.