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Finding the Fourth Proportional to 64,423.64, 89,026.64 and 48,480.32

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Solution

The fourth proportional to 64,423.64, 89,026.64 and 48,480.32 is: 66,994.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,423.64 : 89,026.64 = 48,480.32 : x
  2. Step 2: Convert to fraction form
    64,423.64/89,026.64 = 48,480.32/x
  3. Step 3: Cross multiply
    64,423.64x = 89,026.64 × 48,480.32
  4. Step 4: Simplify right side
    64,423.64x = 4,316,039,995.72
  5. Step 5: Solve for x
    x = 4,316,039,995.72/64,423.64
  6. Step 6: Final answer
    x = 66,994.66

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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.