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Finding the Fourth Proportional to 42,807.51, 64,167.53 and 14,719.14

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Solution

The fourth proportional to 42,807.51, 64,167.53 and 14,719.14 is: 22,063.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,807.51 : 64,167.53 = 14,719.14 : x
  2. Step 2: Convert to fraction form
    42,807.51/64,167.53 = 14,719.14/x
  3. Step 3: Cross multiply
    42,807.51x = 64,167.53 × 14,719.14
  4. Step 4: Simplify right side
    42,807.51x = 944,490,783.93
  5. Step 5: Solve for x
    x = 944,490,783.93/42,807.51
  6. Step 6: Final answer
    x = 22,063.67

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1.5x scale

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.