Finding the Fourth Proportional to 6,713,822.61, 10,070,724.80 and 3,117,623.09
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Solution
The fourth proportional to 6,713,822.61, 10,070,724.80 and 3,117,623.09 is: 4,676,430.40
Step by Step Solution
- Step 1: Write the proportion equation
6,713,822.61 : 10,070,724.80 = 3,117,623.09 : x - Step 2: Convert to fraction form
6,713,822.61/10,070,724.80 = 3,117,623.09/x - Step 3: Cross multiply
6,713,822.61x = 10,070,724.80 × 3,117,623.09 - Step 4: Simplify right side
6,713,822.61x = 31,396,724,126,956.07 - Step 5: Solve for x
x = 31,396,724,126,956.07/6,713,822.61 - Step 6: Final answer
x = 4,676,430.40
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Double scale
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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.