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Finding the Fourth Proportional to 8,478,809.07, 11,700,534.76 and 4,947,281.11

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Solution

The fourth proportional to 8,478,809.07, 11,700,534.76 and 4,947,281.11 is: 6,827,118.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,478,809.07 : 11,700,534.76 = 4,947,281.11 : x
  2. Step 2: Convert to fraction form
    8,478,809.07/11,700,534.76 = 4,947,281.11/x
  3. Step 3: Cross multiply
    8,478,809.07x = 11,700,534.76 × 4,947,281.11
  4. Step 4: Simplify right side
    8,478,809.07x = 57,885,834,553,426.84
  5. Step 5: Solve for x
    x = 57,885,834,553,426.84/8,478,809.07
  6. Step 6: Final answer
    x = 6,827,118.53

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.