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Finding the Fourth Proportional to 8,348,064.60, 12,522,096.90 and 7,784,045.40

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Solution

The fourth proportional to 8,348,064.60, 12,522,096.90 and 7,784,045.40 is: 11,676,068.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,348,064.60 : 12,522,096.90 = 7,784,045.40 : x
  2. Step 2: Convert to fraction form
    8,348,064.60/12,522,096.90 = 7,784,045.40/x
  3. Step 3: Cross multiply
    8,348,064.60x = 12,522,096.90 × 7,784,045.40
  4. Step 4: Simplify right side
    8,348,064.60x = 97,472,570,772,799.27
  5. Step 5: Solve for x
    x = 97,472,570,772,799.27/8,348,064.60
  6. Step 6: Final answer
    x = 11,676,068.10

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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.