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Finding the Fourth Proportional to 46,478.64, 64,140.90 and 25,257.90

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Solution

The fourth proportional to 46,478.64, 64,140.90 and 25,257.90 is: 34,856.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,478.64 : 64,140.90 = 25,257.90 : x
  2. Step 2: Convert to fraction form
    46,478.64/64,140.90 = 25,257.90/x
  3. Step 3: Cross multiply
    46,478.64x = 64,140.90 × 25,257.90
  4. Step 4: Simplify right side
    46,478.64x = 1,620,064,438.11
  5. Step 5: Solve for x
    x = 1,620,064,438.11/46,478.64
  6. Step 6: Final answer
    x = 34,856.11

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1.5x scale

Why These Related Problems?

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